Every facial recognition system works differently-often built on proprietary algorithms-but you can sort out the process into three basic types of technology:
Most people have seen facial recognition used in movies for decades (video), but it’s rarely depicted correctly. But as moratoriums expire and the technology behind facial recognition gets better and cheaper, society will need to answer big questions about how facial recognition should be regulated, as well as small questions about which services we’re each willing to use and which privacy sacrifices we’re each willing to make. Concerns about that ubiquity, amplified by evidence of racial profiling and protester identification, have caused major companies, including Amazon, IBM, and Microsoft, to put a moratorium on selling their software to law enforcement. When it’s a device you own or software you use, you may be able to opt out of or turn off facial recognition, but the ubiquity of cameras makes the technology increasingly difficult to avoid in public. While many people interact with facial recognition merely as a way to unlock their phones or sort their photos, how companies and governments use it will have a far greater impact on people’s lives. Facial recognition-the software that maps, analyzes, and then confirms the identity of a face in a photograph or video-is one of the most powerful surveillance tools ever made.
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